Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
1100146heavily pollutedexcellent181excellent
1000146heavily pollutedexcellent161excellent
0900132moderately pollutedexcellent151excellent
0800140moderately pollutedexcellent151excellent
0700136moderately pollutedexcellent151excellent
0600130moderately pollutedexcellent131excellent
0500144heavily pollutedexcellent121excellent
0400130moderately pollutedexcellent131excellent
0300130moderately pollutedexcellent131excellent
0200133moderately pollutedexcellent131excellent
0100117moderately pollutedexcellent121excellent
0000116moderately pollutedexcellent131excellent
2300113moderately pollutedexcellent121excellent
2200108moderately pollutedexcellent71excellent
2100109moderately pollutedexcellent51excellent
2000108moderately pollutedexcellent101excellent
1900112moderately pollutedexcellent101excellent
1800105moderately pollutedexcellent91excellent
170096lightly pollutedexcellent91excellent
1600104moderately pollutedexcellent111excellent
1500122moderately pollutedexcellent141excellent
1400109moderately pollutedexcellent121excellent
1300100lightly pollutedexcellent121excellent
120099lightly pollutedexcellent121excellent